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300 Watt Solar Kit
300W kit.
SKU:UGS-K3004
Regular price
$599.99 USD
300W Solar Array — about 1.1kWh a day.
40A MPPT Charge Controller.
40A MPPT Charge Controller.
Cables, fuses, brackets and connectors in the box.
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1-332-291-6885
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Product Information
Features
- 300W Solar Array: Includes three 100W monocrystalline solar panels, producing approximately 1.1kWh of energy per day under 4 peak sun hours.
- 12V Solar Charging System: Designed around a 12V solar charging system for compatible battery banks.
- 40A MPPT Charge Controller: Maximizes solar harvest with up to 99% MPPT tracking efficiency and 98% peak conversion efficiency.
- Solar Charging Kit: Includes professionally matched solar panels, an MPPT charge controller, and installation accessories for efficient battery charging.
- Versatile Applications: Ideal for RVs, trailers, boats, cabins, and other small off-grid solar charging systems.
Kit Includes
- 3 x MEGA 100 12V 100W Solar Panels (RS-M100)
- 1 x 40A MPPT Charge Controller (RS-MPPT40P)
- 1 x 20 ft 10 AWG Solar Cable (Red), connects solar panel to controller (RS-20101)
- 1 x 20 ft 10 AWG Solar Cable (Black), connects solar panel to controller (RS-20101)
- 1 x 10 ft 8 AWG Battery Cable (Red), connects controller to battery (RS-810)
- 1 x 10 ft 8 AWG Battery Cable (Black), connects controller to battery (RS-810)
- 3 x Mounting Z Bracket sets (one set of 4) (RS-ZB4C)
- 1 x 10A Inline Fuse Holder with Fuse(RS-SC10F)
| Specification | Value |
|---|---|
| Solar array | 300W |
| Estimated daily production | ~1.1kWh at 4 peak sun hours |
| System voltage | 12V |
| Battery | Not included |
| Inverter | Not included |
| Charge controller | 40A MPPT Charge Controller |
| Components supplied | 8 matched items — see What's Included |
- 3 x MEGA 100 12V 100W Solar Panels
- 1 x 40A MPPT Charge Controller
- 1 x 20 ft 10 AWG Solar Cable (Red), connects solar panel to controller
- 1 x 20 ft 10 AWG Solar Cable (Black), connects solar panel to controller
- 1 x 10 ft 8 AWG Battery Cable (Red), connects controller to battery
- 1 x 10 ft 8 AWG Battery Cable (Black), connects controller to battery
- 3 x Mounting Z Bracket sets (one set of 4)
- 1 x 10A Inline Fuse Holder with Fuse
This kit charges a battery bank rather than storing energy itself, so what it powers depends on the battery you pair it with. These are the figures the array itself delivers.
| Measure | Estimate |
|---|---|
| Solar array | 300W |
| Production, clear day | ~1.1–1.4kWh |
| Production, per month | ~37kWh |
| Typical 100Ah 12V battery | Recharged in roughly 1 day(s) of sun |
| Suits | RVs, vans, trailers, cabins and off-grid charging |
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Frequently Asked Questions
What can this kit run?
This kit charges a battery rather than storing energy itself. The 300W array makes about 1.1kWh on a clear day, so what it runs depends on the battery and inverter you pair with it.
Do I need anything else?
A battery, and an inverter if you want 120V AC. The panel, controller, cables, fuses and brackets are included. We can recommend a matching battery on 1-332-291-6885.
Can I expand it later?
Yes. You can add panels within the charge controller's input limit. Keep added panels the same model where possible — mismatched panels in one string pull the whole string down to the weakest one.